“Walking Out” is a tense survival thriller that offers much more than nail-biting adventure. Sure, it has plenty of edge-of-the seat suspense, but, as written and directed by Alex and Andrew Smith (“The Slaughter Rule”), it is just as noteworthy for its terrific, spare dialogue, stunning cinematography, stirring musical score and poignant narrative arc.
Based on a short story by David Quammen, it’s a tale of a father and son who must battle the elements in the Montana mountains, but it’s also a relatable rumination on the complexity of parent-child relationships and their continuing sway over us into adulthood. Cal (Matt Bomer) is 44, divorced and living alone in Montana.